test: update assert error messages

PR-URL: #16035
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: s9tpepper

test/parallel/test-vm-preserves-property.js

@@ -20,6 +20,6 @@ const res = vm.runInContext(code, o, 'test');
 assert(res);
 assert.strictEqual(typeof res, 'object');
 assert.strictEqual(res.value, 'val');
-assert.strictEqual(res.configurable, false, 'should not be configurable');
-assert.strictEqual(res.enumerable, false, 'should not be enumerable');
-assert.strictEqual(res.writable, false, 'should not be writable');
+assert.strictEqual(res.configurable, false);
+assert.strictEqual(res.enumerable, false);
+assert.strictEqual(res.writable, false);